CN111335351B - Combined type integral cold box foundation bolt positioning measurement die and use method thereof - Google Patents
Combined type integral cold box foundation bolt positioning measurement die and use method thereof Download PDFInfo
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- CN111335351B CN111335351B CN201910581508.8A CN201910581508A CN111335351B CN 111335351 B CN111335351 B CN 111335351B CN 201910581508 A CN201910581508 A CN 201910581508A CN 111335351 B CN111335351 B CN 111335351B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/44—Foundations for machines, engines or ordnance
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
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Abstract
The invention specifically relates to a positioning and measuring die for a combined type integral cold box foundation bolt; the method is characterized in that: the leveling device comprises a combined support beam, a leveling jacking tool and a positioning template; the combined support beam comprises a support beam module; the leveling jacking tool is used for supporting the whole combined type support beam and adjusting the flatness of the support beam; the positioning template is a steel plate and is used for recording the position relation of each column base bolt, and the positioning template is arranged on the combined type support beam according to the position of the screw hole of the cold box. This measuring die can be accurate feeds back the pre-buried position of cold box basis rag bolt to the assembly shop, and does not receive factors influences such as operation personnel, weather, has very strong adaptability to super large-scale rag bolt cluster simultaneously, does not receive rag bolt to arrange shape, bolt specification difference, bolt elevation difference influences.
Description
Technical Field
The invention relates to the field of equipment maintenance, in particular to a positioning and measuring die for a foundation bolt of a combined integral cold box and a using method thereof.
Background
The large-scale integral skid-mounted cold box belongs to super-long and overweight equipment, is transported to the site after integral assembly is completed in an assembly workshop, and is integrally hoisted and fixed on an embedded foundation bolt of a cold box foundation. Because whole cold box bottom plate bolt backing plate thickness and cold box basis rag bolt all reach 10cm, in case take place bolt positioning deviation, will greatly increased the processing degree of difficulty of cold box backing plate, increase hoist and mount time and hoist and mount risk simultaneously. Referring to traditional construction experience of other large-scale equipment, a steel plate and a section steel are generally used for manufacturing a shaping support at the equipment foundation construction stage to ensure accurate position of the embedded foundation bolt, and then oxyacetylene is used for reaming an equipment bottom plate or correcting the embedded bolt when the equipment is hoisted in place to ensure that the equipment is smoothly placed in place. When the method is used for mounting the integral cold box, two problems exist: firstly, the large-scale space division integral skid-mounted type cold box is large in specification and size, different in specifications and elevations of foundation bolts, and in addition, the bolts are arranged in non-circular, square and other standard shapes, the cold box is large in foundation size and long in construction time, if a traditional template bolt fixing method is adopted, great influences can be caused on the aspects of cost, construction period and the like, and the foundation pouring and the maintenance process also have the risk of uncontrollable deformation. Second, whole cold box is enlarged, and cold box bottom plate thickness and rag bolt specification all increase at double, no matter carry out the bottom plate reaming, still the bolt is rectified, all takes a long time, has both increased cold box hoist and mount risk like this, and it goes on to night to probably postpone the cold box hoist and mount in addition.
In order to ensure the installation quality of the cold box, after the construction of the cold box foundation is completed, how to accurately feed back the deviation of the position of the foundation embedded bolt to a cold box assembly workshop so as to be convenient for timely adjustment when the hole of the cold box bottom plate bolt hole is opened is very important.
Disclosure of Invention
The invention aims to solve the problems, the combined type integral cold box foundation bolt measuring mold is adopted, after the cold box foundation construction is completed, the on-site cold box foundation bolt position is accurately measured and recorded, and the mold is utilized to feed back the measurement result to a cold box assembly workshop in a material object form, so that the accuracy of data transmission is ensured.
In order to achieve the above object, the present invention is realized by:
a combined type integral cold box foundation bolt positioning and measuring die comprises a combined type support beam, a leveling jacking tool and a positioning template; the combined type support beam comprises a plurality of support beam modules which are connected with one another through flanges, the support beam modules are of box-type structures, and after the combined type support beam is combined, the combined type support beam is used for recording the relative position relation among all column foot foundation bolt groups of the cold box and is used as a support structure fixing and positioning template; the transverse width of the combined support beam is determined according to the size of a bottom plate cross beam of the cold box; the support beam modules are connected through flange surfaces, and male ribs and female grooves are respectively arranged on the flange surfaces of the adjacent support beam modules so as to control the assembly deformation of the support beams each time; the leveling jacking tool is used for supporting the whole combined type support beam and adjusting the flatness of the support beam; the leveling jacking device comprises a jacking support, a stud, a nut, a steel pipe and a bottom plate, wherein the jacking support is used for supporting the combined support beam, the bottom of the jacking support is welded with the stud, the stud is inserted into the steel pipe, the nut is screwed into the stud, the lifting height of the stud is controlled through the nut, and the steel pipe is arranged on the bottom plate; the positioning template is a steel plate and is used for recording the position relation of each column base foundation bolt group, and in the construction stage of the cold box foundation, a single column base foundation bolt group is relatively easy to fix, so that bolt holes of the positioning template are firstly processed according to the design interval, the diameter of each bolt hole is 2mm larger than the specification of each bolt, and the positioning template is arranged on the combined type support beam according to the position of the bolt hole of the cold box.
The use method of the measuring die comprises
step 2, measuring the overhead height of the support beam, rotating a nut of the leveling jacking tool, and respectively placing the eight leveling jacking tools into the four corners and the center of the boundary beam of the combined support beam after the leveling jacking tool is adjusted to the corresponding height;
step 4, fine adjustment is carried out by utilizing the leveling jacking to enable all the positioning templates on the combined type support beam to be at the same horizontal elevation, then welding and fixing are carried out on two sides of the positioning templates, which are in contact with the combined type support beam, after the welding seam is cooled, the horizontal elevations of all the positioning templates are checked and adjusted again, and the reaming templates are recorded in a photo mode and fed back to an assembly workshop along with the molds;
and 6, dismantling the connecting bolts, disassembling the combined support beam into an assembly convenient to transport, and transporting the assembly to a cold box assembly workshop for re-assembly.
The measuring die has the following advantages:
1. the pre-buried position of the foundation anchor bolt of cold box basis that can be accurate feeds back to the assembly shop, and does not receive factors such as operation personnel, weather to influence, has very strong adaptability to super large-scale foundation bolt cluster simultaneously, does not receive foundation bolt to arrange shape, bolt specification difference, bolt elevation difference influence.
2. The mold support beam is a combined type support, the number of the assembling parts can be set according to the size of the foundation bolt cluster, transportation is facilitated, the connecting clamping grooves are designed on the connecting flanges of the components, multiple different-place assembling deviations can be effectively controlled, the support beam can be repeatedly used, and the measuring advantage of multiple sets of same-scale cold box foundation bolts is better.
3. The steel pipe, the bolt, the channel steel, the steel plate and the like required by the leveling jacking tool are all common materials in construction sites, the leveling jacking tool is convenient to manufacture, the lengths of the steel pipe and the stud can be adjusted according to site requirements, and the leveling jacking tool is high in practicability.
4. The method can effectively reduce the requirement of the integral embedding precision of the foot bolt during the construction of the cold box foundation, and reduce the cost investment and the construction period investment in the construction stage of the cold box foundation.
Drawings
Fig. 1 is a top view of a combined support beam in the measuring mold.
Fig. 2 is a schematic view of a flange surface of a support beam module in the measuring die.
Fig. 3 is a schematic view of a leveling jacking device in the measuring die.
Fig. 4 is a schematic diagram of a mold positioning template in the measurement mold.
Fig. 5 is a schematic view of an installation method of the combined support beam in the measurement mold.
Fig. 6 is a graph showing the effect of the measuring mold.
Detailed Description
The invention is further illustrated by the following specific examples.
As shown in fig. 1 to 6, a positioning and measuring mold for a combined type integral cold box foundation bolt comprises a combined type support beam, a leveling jacking tool and a positioning template; the combined type support beam comprises a plurality of support beam modules 1 which are connected with one another through flanges, the support beam modules 1 are of box-type structures, and after the combined type support beam is combined, the combined type support beam is used for recording the relative position relation between each column foot foundation bolt group of the cold box and is used as a support structure to fix and position a template; the transverse width of the combined support beam is determined according to the size of a bottom plate cross beam of the cold box; the support beam modules 1 are connected through flange surfaces 3, and male ribs 5 and female grooves 4 are respectively arranged on the flange surfaces 3 of the adjacent support beam modules 1 so as to control the assembly deformation of the support beam each time; the leveling jacking tool is used for supporting the whole combined type support beam and adjusting the flatness of the support beam; the leveling jacking tool comprises a jacking 6, a stud 7, a nut 8, a steel pipe 9 and a bottom plate 10, wherein the jacking 6 is used for supporting the combined support beam, the bottom of the jacking 6 is welded with the stud 7, the stud 7 is inserted into the steel pipe 9, the nut 8 is screwed into the stud 7, the lifting height of the stud 7 is controlled through the nut 8, and the steel pipe 9 is arranged on the bottom plate 10; the positioning templates 12 and 13 are steel plates and are used for recording the position relation of each column base foundation bolt group, and because in the construction stage of the cold box foundation, a single column base foundation bolt group is relatively easy to fix, the bolt holes of the positioning templates are firstly processed according to the design interval, the diameter of the bolt holes is larger than the specification of bolts by 2mm, and the positioning templates are arranged on the combined type support beam according to the positions of the bolt holes of the cold box.
The use method of the measuring die comprises
step 2, measuring the overhead height of the support beam, rotating a nut of the leveling jacking tool, and respectively placing the eight leveling jacking tools into the four corners and the center of the boundary beam of the combined support beam after the leveling jacking tool is adjusted to the corresponding height;
step 4, fine adjustment is carried out by utilizing the leveling jacking to enable all the positioning templates on the combined type support beam to be at the same horizontal elevation, then welding and fixing are carried out on two sides of the positioning templates, which are in contact with the combined type support beam, after the welding seam is cooled, the horizontal elevations of all the positioning templates are checked and adjusted again, and the reaming templates are recorded in a photo mode and fed back to an assembly workshop along with the molds;
and 6, dismantling the connecting bolts, disassembling the combined support beam into an assembly convenient to transport, and transporting the assembly to a cold box assembly workshop for re-assembly.
This measuring die can be accurate feeds back the pre-buried position of cold box basis rag bolt to the assembly shop, and does not receive factors influences such as operation personnel, weather, has very strong adaptability to super large-scale rag bolt cluster simultaneously, does not receive rag bolt to arrange shape, bolt specification difference, bolt elevation difference influences. The use of the mould can effectively reduce the requirement of the integral pre-buried precision of the foundation bolt during the construction of the cold box foundation and reduce the cost input and the construction period input in the construction stage of the cold box foundation.
Claims (2)
1. The utility model provides a modular whole cold box foundation bolt location measurement mould, characterized by: the leveling device comprises a combined support beam, a leveling jacking tool and a positioning template; the combined type support beam comprises a plurality of support beam modules which are connected with one another through flanges, the support beam modules are of box-type structures, and after the combined type support beam is combined, the combined type support beam is used for recording the relative position relation among all column foot foundation bolt groups of the cold box and is used as a support structure fixing and positioning template; the transverse width of the combined support beam is determined according to the size of a bottom plate cross beam of the cold box; the support beam modules are connected through flange surfaces, and male ribs and female grooves are respectively arranged on the flange surfaces of the adjacent support beam modules so as to control the assembly deformation of the support beams each time; the leveling jacking tool is used for supporting the whole combined type support beam and adjusting the flatness of the support beam; the leveling jacking device comprises a jacking support, a stud, a nut, a steel pipe and a bottom plate, wherein the jacking support is used for supporting the combined support beam, the bottom of the jacking support is welded with the stud, the stud is inserted into the steel pipe, the nut is screwed into the stud, the lifting height of the stud is controlled through the nut, and the steel pipe is arranged on the bottom plate; the positioning template is a steel plate and is used for recording the position relation of each column base foundation bolt group, and in the construction stage of the cold box foundation, a single column base foundation bolt group is relatively easy to fix, so that bolt holes of the positioning template are firstly processed according to the design interval, the diameter of each bolt hole is 2mm larger than the specification of each bolt, and the positioning template is arranged on the combined type support beam according to the position of the bolt hole of the cold box.
2. The method of using the measuring tool of claim 1, wherein: comprises that
Step 1, placing each support beam module on a cold box foundation, enabling an outer frame of each support beam module to penetrate through the middle of each column foot foundation bolt group, and assembling each support beam module into a complete combined support beam through a flange surface and a connecting bolt;
step 2, measuring the overhead height of the support beam, rotating a nut of the leveling jacking tool, and respectively placing the eight leveling jacking tools into the four corners and the center of the boundary beam of the combined support beam after the leveling jacking tool is adjusted to the corresponding height;
step 3, placing the positioning template into the foundation bolt, if the foundation bolt has large deviation, reaming the bolt hole in the positioning template according to the deviation direction, and marking the deviation direction and the deviation distance by using a paint pen at the deviation position;
step 4, fine adjustment is carried out by utilizing the leveling jacking to enable all the positioning templates on the combined type support beam to be at the same horizontal elevation, then welding and fixing are carried out on two sides of the positioning templates, which are in contact with the combined type support beam, after the welding seam is cooled, the horizontal elevations of all the positioning templates are checked and adjusted again, and the reaming templates are recorded in a photo mode and fed back to an assembly workshop along with the molds;
step 5, after confirming the position of the template, lifting the whole measuring mold out of the foundation bolts, placing the foundation bolts on the horizontal ground, and sampling the space between 8-10 groups of foundation bolts by using a measuring tape so as to recheck the hole distance of the bottom plate of the cold box after the cold box enters the field;
and 6, dismantling the connecting bolts, disassembling the combined support beam into an assembly convenient to transport, and transporting the assembly to a cold box assembly workshop for re-assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910581508.8A CN111335351B (en) | 2019-06-29 | 2019-06-29 | Combined type integral cold box foundation bolt positioning measurement die and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910581508.8A CN111335351B (en) | 2019-06-29 | 2019-06-29 | Combined type integral cold box foundation bolt positioning measurement die and use method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN111335351A CN111335351A (en) | 2020-06-26 |
| CN111335351B true CN111335351B (en) | 2021-08-13 |
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| CN201910581508.8A Active CN111335351B (en) | 2019-06-29 | 2019-06-29 | Combined type integral cold box foundation bolt positioning measurement die and use method thereof |
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| CN113958801B (en) * | 2021-10-09 | 2023-02-17 | 中国化学工程第六建设有限公司 | Column base bottom plate separated large-scale integral cold box and installation method thereof |
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| JP5526001B2 (en) * | 2010-11-17 | 2014-06-18 | 株式会社東芝 | Foundation-based level adjustment method and foundation-base fixing method |
| CN204199323U (en) * | 2014-11-12 | 2015-03-11 | 九冶建设有限公司 | For the positioning screw hole mould of pre-embedded bolt quick position |
| CN109340510A (en) * | 2018-10-18 | 2019-02-15 | 杭州杭氧化医工程有限公司 | Air separation cooling box basis foot anchor mounting structure and its installation method |
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